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Web Services and Single Sign-On belong to a group of most important Internet technologies. However, in recent years, it has been shown that these technologies allow for serious attacks. The attacks take advantage of the XML complexity and make it possible to read data from secured servers, authenticate as an arbitrary user in Single Sign-On scenarios, or decrypt confidential data. In this training, we will give an overview of the most important Web Service and Single Sign-On specific attacks. Participants will get the opportunity to carry out these attacks in a prepared virtual machine. The attacks will be first tested manually (e.g., with soapUI), in order to get a feeling for the attacks. Subsequently, we will present our penetration testing tool WS-Attacker, which will be used to execute the presented attacks automatically. For each of the attacks, countermeasures will be discussed, and it will be shown how to deploy them on widely used systems and firewalls, including IBM Datapower or Axway.

Christian Mainka is a Security Researcher at the Ruhr University Bochum, Chair for Network and Data Security. Since 2009, he focuses on XML and Web Services technologies and develops his penetration testing tool WS-Attacker and has published several papers in the field of XML security... Read More →

Juraj Somorovsky finished his PhD in the area of XML Security in 2013. In his thesis „On the Insecurity of XML Security“ he analyzes various attacks on Web Services and presents practical countermeasures against these attacks, which were applied in XML Security specifications... Read More →